,26/27 BIOL 121/BIOD 121 MODULE 7 EXAM |
NUTRITION -PORTAGE | Q&A + DETAILED
RATIONALES
1. An adult with hypertension wants to use nutrition to reduce cardiovascular risk. Which
dietary change is most directly aligned with blood-pressure management?
A) Increase processed meats for additional protein
B) Reduce sodium while emphasizing fruits, vegetables, whole grains, and other
nutrient-dense foods
C) Eliminate all dietary carbohydrate
D) Replace unsaturated fats with saturated fats
Correct Answer: Reduce sodium while emphasizing fruits, vegetables, whole grains, and
other nutrient-dense foods
Rationale: Dietary patterns emphasizing vegetables, fruits, whole grains, appropriate
protein sources, and unsaturated fats while limiting excessive sodium support
cardiovascular health and blood-pressure control. Sodium reduction is particularly
relevant because excess sodium can promote fluid retention and contribute to elevated
blood pressure in susceptible individuals.
2. A dietary pattern designed to reduce LDL cholesterol should generally emphasize
replacing saturated fat with:
A) added sugars
B) refined starches
C) unsaturated fats
D) trans fats
Correct Answer: unsaturated fats
Rationale: Replacing foods rich in saturated fat with sources of mono- and
polyunsaturated fats can improve the blood lipid profile, particularly LDL cholesterol.
Simply replacing saturated fat with refined carbohydrate or added sugar does not provide
the same cardiovascular benefit.
3. Someone with cardiovascular disease believes dietary fiber has no relationship to blood
lipids. Which finding best challenges this belief?
A) Insoluble fiber is converted directly into cholesterol
B) Fiber supplies 9 kcal per gram
C) All fibers increase LDL cholesterol
D) Certain soluble fibers can help lower LDL cholesterol by influencing intestinal
cholesterol and bile-acid metabolism
,Correct Answer: Certain soluble fibers can help lower LDL cholesterol by influencing
intestinal cholesterol and bile-acid metabolism
Rationale: Viscous soluble fibers can bind or interfere with reabsorption of bile acids,
increasing their excretion. Because cholesterol is used in bile-acid synthesis, this can
contribute to reductions in circulating LDL cholesterol. Oats, barley, beans, and certain
fruits are useful sources.
4. Which dietary pattern provides the strongest overall foundation for cardiovascular
disease prevention?
A) A varied pattern rich in vegetables, fruits, whole grains, healthy protein sources, and
unsaturated fats while limiting sodium, added sugars, and saturated fat
B) A diet centered on processed meats and refined grains
C) Routine megadose vitamin supplementation without dietary change
D) Elimination of vegetables to reduce carbohydrate intake
Correct Answer: A varied pattern rich in vegetables, fruits, whole grains, healthy protein
sources, and unsaturated fats while limiting sodium, added sugars, and saturated fat
Rationale: Cardiovascular protection is associated with overall dietary patterns rather
than a single “heart food.” A nutrient-dense pattern improves fiber, mineral, and
unsaturated-fat intake while reducing dietary factors associated with hypertension,
dyslipidemia, and excessive energy intake.
5. An individual with heart failure develops peripheral edema after repeatedly consuming
high-sodium restaurant meals. Which mechanism best explains the nutritional
concern?
A) Sodium directly destroys cardiac muscle
B) High sodium intake can promote fluid retention and increase the burden of volume
management
C) Sodium eliminates thirst
D) Sodium prevents renal filtration completely
Correct Answer: High sodium intake can promote fluid retention and increase the burden
of volume management
Rationale: Sodium promotes extracellular fluid retention. In heart failure, where effective
circulation and fluid regulation may already be compromised, excessive sodium can
aggravate edema and other manifestations of volume overload. Individual sodium and fluid
recommendations depend on clinical status.
6. A person with elevated triglycerides consumes several sugar-sweetened beverages daily.
Which modification is most appropriate?
A) Replace water with fruit-flavored drinks
B) Increase alcohol consumption
, C) Reduce added sugars and replace sugary beverages with unsweetened alternatives
D) Increase trans-fat intake
Correct Answer: Reduce added sugars and replace sugary beverages with unsweetened
alternatives
Rationale: High intake of added sugars, particularly from beverages, can contribute
substantial rapidly absorbed carbohydrate and excess energy and may worsen triglyceride
levels in susceptible individuals. Replacing sugary beverages with water or unsweetened
options supports cardiometabolic health.
7. A food label lists “partially hydrogenated oil.” Historically, why has this ingredient
been a cardiovascular concern?
A) It can indicate industrial trans fat, which adversely affects blood lipoproteins
B) It contains excessive dietary fiber
C) It provides no energy
D) It is chemically identical to omega-3 fat
Correct Answer: It can indicate industrial trans fat, which adversely affects blood
lipoproteins
Rationale: Industrial trans fatty acids can increase LDL cholesterol and adversely affect
cardiovascular risk. Their use has been greatly restricted in many food systems, but
understanding the relationship remains nutritionally important.
8. Following a myocardial infarction, an individual asks whether one supplement can
substitute for dietary improvement. Which response best reflects clinical nutrition
principles?
A) A multivitamin completely reverses atherosclerosis
B) Vitamin C replaces lipid management
C) Fish-oil supplements eliminate the need for dietary assessment
D) Overall dietary pattern and appropriate medical therapy remain more important
than relying on a single supplement
Correct Answer: Overall dietary pattern and appropriate medical therapy remain more
important than relying on a single supplement
Rationale: Cardiovascular disease is multifactorial. Nutrition therapy emphasizes
sustainable dietary patterns together with management of blood pressure, lipids, diabetes,
physical activity, smoking, medications, and other relevant factors. A supplement cannot
substitute for comprehensive care.
9. Gastroesophageal reflux disease is most directly associated with:
A) failure of pancreatic insulin secretion
B) destruction of intestinal villi by gluten
NUTRITION -PORTAGE | Q&A + DETAILED
RATIONALES
1. An adult with hypertension wants to use nutrition to reduce cardiovascular risk. Which
dietary change is most directly aligned with blood-pressure management?
A) Increase processed meats for additional protein
B) Reduce sodium while emphasizing fruits, vegetables, whole grains, and other
nutrient-dense foods
C) Eliminate all dietary carbohydrate
D) Replace unsaturated fats with saturated fats
Correct Answer: Reduce sodium while emphasizing fruits, vegetables, whole grains, and
other nutrient-dense foods
Rationale: Dietary patterns emphasizing vegetables, fruits, whole grains, appropriate
protein sources, and unsaturated fats while limiting excessive sodium support
cardiovascular health and blood-pressure control. Sodium reduction is particularly
relevant because excess sodium can promote fluid retention and contribute to elevated
blood pressure in susceptible individuals.
2. A dietary pattern designed to reduce LDL cholesterol should generally emphasize
replacing saturated fat with:
A) added sugars
B) refined starches
C) unsaturated fats
D) trans fats
Correct Answer: unsaturated fats
Rationale: Replacing foods rich in saturated fat with sources of mono- and
polyunsaturated fats can improve the blood lipid profile, particularly LDL cholesterol.
Simply replacing saturated fat with refined carbohydrate or added sugar does not provide
the same cardiovascular benefit.
3. Someone with cardiovascular disease believes dietary fiber has no relationship to blood
lipids. Which finding best challenges this belief?
A) Insoluble fiber is converted directly into cholesterol
B) Fiber supplies 9 kcal per gram
C) All fibers increase LDL cholesterol
D) Certain soluble fibers can help lower LDL cholesterol by influencing intestinal
cholesterol and bile-acid metabolism
,Correct Answer: Certain soluble fibers can help lower LDL cholesterol by influencing
intestinal cholesterol and bile-acid metabolism
Rationale: Viscous soluble fibers can bind or interfere with reabsorption of bile acids,
increasing their excretion. Because cholesterol is used in bile-acid synthesis, this can
contribute to reductions in circulating LDL cholesterol. Oats, barley, beans, and certain
fruits are useful sources.
4. Which dietary pattern provides the strongest overall foundation for cardiovascular
disease prevention?
A) A varied pattern rich in vegetables, fruits, whole grains, healthy protein sources, and
unsaturated fats while limiting sodium, added sugars, and saturated fat
B) A diet centered on processed meats and refined grains
C) Routine megadose vitamin supplementation without dietary change
D) Elimination of vegetables to reduce carbohydrate intake
Correct Answer: A varied pattern rich in vegetables, fruits, whole grains, healthy protein
sources, and unsaturated fats while limiting sodium, added sugars, and saturated fat
Rationale: Cardiovascular protection is associated with overall dietary patterns rather
than a single “heart food.” A nutrient-dense pattern improves fiber, mineral, and
unsaturated-fat intake while reducing dietary factors associated with hypertension,
dyslipidemia, and excessive energy intake.
5. An individual with heart failure develops peripheral edema after repeatedly consuming
high-sodium restaurant meals. Which mechanism best explains the nutritional
concern?
A) Sodium directly destroys cardiac muscle
B) High sodium intake can promote fluid retention and increase the burden of volume
management
C) Sodium eliminates thirst
D) Sodium prevents renal filtration completely
Correct Answer: High sodium intake can promote fluid retention and increase the burden
of volume management
Rationale: Sodium promotes extracellular fluid retention. In heart failure, where effective
circulation and fluid regulation may already be compromised, excessive sodium can
aggravate edema and other manifestations of volume overload. Individual sodium and fluid
recommendations depend on clinical status.
6. A person with elevated triglycerides consumes several sugar-sweetened beverages daily.
Which modification is most appropriate?
A) Replace water with fruit-flavored drinks
B) Increase alcohol consumption
, C) Reduce added sugars and replace sugary beverages with unsweetened alternatives
D) Increase trans-fat intake
Correct Answer: Reduce added sugars and replace sugary beverages with unsweetened
alternatives
Rationale: High intake of added sugars, particularly from beverages, can contribute
substantial rapidly absorbed carbohydrate and excess energy and may worsen triglyceride
levels in susceptible individuals. Replacing sugary beverages with water or unsweetened
options supports cardiometabolic health.
7. A food label lists “partially hydrogenated oil.” Historically, why has this ingredient
been a cardiovascular concern?
A) It can indicate industrial trans fat, which adversely affects blood lipoproteins
B) It contains excessive dietary fiber
C) It provides no energy
D) It is chemically identical to omega-3 fat
Correct Answer: It can indicate industrial trans fat, which adversely affects blood
lipoproteins
Rationale: Industrial trans fatty acids can increase LDL cholesterol and adversely affect
cardiovascular risk. Their use has been greatly restricted in many food systems, but
understanding the relationship remains nutritionally important.
8. Following a myocardial infarction, an individual asks whether one supplement can
substitute for dietary improvement. Which response best reflects clinical nutrition
principles?
A) A multivitamin completely reverses atherosclerosis
B) Vitamin C replaces lipid management
C) Fish-oil supplements eliminate the need for dietary assessment
D) Overall dietary pattern and appropriate medical therapy remain more important
than relying on a single supplement
Correct Answer: Overall dietary pattern and appropriate medical therapy remain more
important than relying on a single supplement
Rationale: Cardiovascular disease is multifactorial. Nutrition therapy emphasizes
sustainable dietary patterns together with management of blood pressure, lipids, diabetes,
physical activity, smoking, medications, and other relevant factors. A supplement cannot
substitute for comprehensive care.
9. Gastroesophageal reflux disease is most directly associated with:
A) failure of pancreatic insulin secretion
B) destruction of intestinal villi by gluten
